Tenoning machine



July 10, 1951 J. R. BEESON TENONI'NG MACHINE 3 Sheets-Slieet 1 Filed Aug. 18, 1948 John R. Bees on JNVEN TOR.

Jilly 10, 1951 J. R. BEESON 2,560,068

TENONING MACHINE Filed Aug. 18, 1948 3 Sheets-Sheet 2 John R. Beeson JNVENTOR.

B Y MyawFM July 10, 1951 ,1. R. BEESON TENONING MACHINE Filed Aug. 18, 1948 s shets-shet 5 2 Fig.3.

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Patented July 10, 1951 UNI TED STAT ES PATENT F F l CE.

TENONING MACHINE John R. Beeson, Shepherd, Tex;

Application August 185-1948, Serial No. 44,844:

3. Claims. (01. 144-404) V 1: V This. invention relates. to a. machine. for rabbeting. or rabbeting and slotting the ends of wood of. a. belt gearing including. a double pulley [Z secured onthe. drive. shaft. of motor lit, a double bars. to produce sash rails and bars, stiles and I muntins having a tenon or a pair of. spaced tenons on. each. end with shoulders ora shoulder and av cope at the outer sides of the tenon or tenons, or having a cope on each end.

The primary object of the present invention is to: provide a machine of the above kind which isasimpleinconstruction easy to use, and efficient in operation.

Another object. is. to provide a. tenoning machine including a: horizontal power driven shaft carrying a. plurality of rotary cutter. heads, a. vertically" reciprocable work-piece supporting table: movable upwardly to present work-pieces to the: cutter. heads, and. adjustable guide andstop. members 0112131191 top of said. table to facilitate positioning of the work-pieces so that. the endsof the latter will: be rabbeted or rabbeted and slotted: at the. proper points and: to the proper depth when presented to the: cutter-heads.

The exact nature of. the present invention, as well: as other objects and' features thereof, will become apparent from the following description when. considered in connection with the accompanying drawings, in which:

Figure 1. is a. side elevational view,. partly broken. away; of' a tenoni'ng machine constructed in: accordance with the present invention, the work-piece supporting table. being in lowered position;

Figure; is a front elevational view thereof,- partlybroken away and in section;

Figure: 3 is an enlarged. horizontal section taken on the line 33 of Figure 1, with parts broken. away;

Figurev i is'afragmentary side elevational view of the machine; partly broken away, with the table in raised position; i

Figure 5 is a perspective view of the work-- piece supporting table;

Figure 6'isa-si'deelevational view of one of the cutter heads;

Figure 7 is a view showing the ends of a plurality of different rails and the like formed by means of the present machine.

Referring in detail to the drawings, the present machine includes a suitable frame 5, the sides of which may be partially covered by means of Journaled. i-rr bearings. I at the top and near the back of frame 5 is a transverse horizontal shaft 8 carrying a plurality of rotary gaining cutters 9. A shelf 10 is provided within the rear portion of frame. 5" below the shaft 8, and mounted on this shelf is an electric motor ll operatively connected. to the shaft 8 by means pulley l3 securedon. an. end of shaft. a, and power transmission: belts. I 4! passing around the. pulleys l2 and I3. As shown, each cutter. head. 9 in.-. cl-udes. a. diskv l5 having. cutter bits or blades I16 secured in tangential: peripheral slots. l1 thereof by means of clamping plates or shims l8 and set screws I9. Spacing sleeves 20 are. provided. on the shaft8 between. adjacent cutter headstoposition the latter in the desired spaced relatiornand the. cutter heads. and. spacing. sleevesv are held in compacted relation between. a. collar 21. fixed to shaft. 8. and a nut. 22. threaded thereon. A suitable shield. 23 is.- provided over the cutter heads to protect. the operator frominjury by the latter.

The cutter heads are arranged in a plurality of groups so that that. or those of; each group may beemployed for a specific operation different from each. ofv those performed by the remaining. groups For instance. the first, two. cutters. from the top of Figure 3 form: one group; having. their. hitsshaped to rabbet. the end of a top or bottom cross rail so as to. form a tenon; a. with a flat shoulder b. onone. side thereof and. a cope. c. at theother sidethereof. Thenexttwocutter heads are adapted. to. rabbet. the check rail end. of a bottom sash bar so. as to. provide. a. tenond with a flat shoulder e; at one. side thereof and av cope. f at the other side thereof. The succeeding two cutter heads are. adapted to. rahbet the check. rail end of a. top sash bar so as. to providea. tenon g withflat shouldersh and i at opposite. sides there.- of and atv different depths... Thenext single cutter head may be used when the. work-piece is disposed flatwise to remove a. side edge portion of the tenon. a and thereby provide. a flat shoulder 70 at this side edge of the tenon The next three cutter heads. form another group adapted to. slot an end ofv a bottom check rail as. at Z. to provide spaced tenons m and n and to. simultaneously rabbet the. tenon m to provide. a. fiat shoulder 0, and to form a. cope p. atv the outer side of the tenonn- The succeeding. three cutter headsformstill another groupadapted toslot an end of. atop check rail. as at. q toform a pair of spaced tenons r and 8,, and torabbet the-rail so. as. to

' form a shoulder t at .the outer side. of the. tenonr,

tangular frame 24 having a table top 25 mounted on the top thereof. As shown, the frame is provided at each side with a pair of spaced vertical guide rods 26 which slidably receive vertically aligned pairs of guide lugs or ears 2! fixed to the ends of frame 24. The table is thus mounted for free vertical movement and so as to lower by gravity. Foot operated means is shown as provided for raising the table so as to present the pieces of work to the cutter heads 9. such means including a treadle 2B pivoted at 29 within the lower portion of the frame 5 and projecting through and beyond the front of the latter, and cords or cables 30 connecting the forward end portion of the treadle with angular arms 3! provided at opposite sides and on the bottom of the table frame 24, said cords or cables passing upwardly over guide pulleys 32 carried by the frame 5. The table top 25 is provided in its rear edge with slots 33 to receive the forward portions of the cutter heads 9, and forwardly and rearwardly adjustable stop blocks 34 are secured upon .the portions of the table top between the slots to support the ends of the wooden bars while being operated upon by the cutter heads and position said wooden bars for being cut to the desired depth. A plurality of laterally adjustable guide strips 35 are secured upon the table top 25, between which the wooden bars are positioned for being presented to the desired group of cutters. When the work-pieces or wooden bars are placed between the guide strips 35. they will be properly positioned so that the cutter heads will rabbet or rabbet and slot the ends of said wooden bars or work-pieces at the proper points with respect to the thickness thereof.

In operation, the work-piece is placed on the From the foregoing description, it is believed that the construction, operation and advantages of the present invention will be readily understood and appreciated by those skilled in the art. Modifications and changes in details of construction are contemplated, such as fall within the spirit, and scope of the invention as claimed.

What is claimed as new is:

1. In a tenoning machine, a horizontal driven shaft, a plurality of rotary cutter heads carried by said shaft, a vertically reciprocable workpiece supporting table disposed in front of said shaft and adapted to be raised to present an end of a work-piece to the cutter heads, said table having a top provided with slots in its rear edge to receive the cutter heads when the table is raised, work-piece stops on the portions of the table top between the slots thereof, work-piece guides on the table top forwardly of the slots thereof to position the work-piece laterally with respect to the cutter heads, and means to raise said table.

2. In a tenoning machine, a horizontal driven shaft, a plurality of rotary cutter heads carried by said shaft, a vertically reciprocable workpiece supporting table disposed in front of said shaft and adapted to be raised to present ends of work-pieces to the cutter heads, said table having a top provided with slots in its rear edge to receive the cutter heads when the table is raised, said cutter heads being arranged in groups for selective use in performing different tenoning operations, work-piece stops on the portions of table top 25 between the proper pairs of guide strips 35 while the table is in lowered position, the rear end of the work-piece being butted against the adjacent stop block 34. With the cutter heads driven by motor H, treadle 23 is depressed so as to raise the work-piece supporting table and present the work-piece to the cutters of the selected group. The table moves the workpiece slightly upwardly past the axis of the cutters so that the work-piece is rabbeted or rabbeted and slotted for the full width thereof. By relieving pressure on the treadle, the table is allowed to lower again so that the work-piece with its end pro erly formed may be removed. The portions of the table top between the forward ends of slots 33 back the work-pieces while being operated upon by the cutter heads so as to prevent the work-pieces from splintering off at the bottom as it is cut. Obviously, by varying the shapes of the cutter bits or the arrangements of the cutters of the different groups, the machine may be adapted for tenoning the ends of many different kinds of work-pieces in accordance with any desired pattern. The machine is exceedingly easy to use because the operator need only position the workpieces between the guide strips and against the stop blocks and then depress the treadle to present the work-pieces to the cutter heads.

By adjusting the associated stop block 34, the first two cutters from the top of Figure 3 may be used to tenon the cross rail end of a sash bar or to cope the ends of muntins, the difference being a shorter tenon on the sash bar and a cope on the end of the muntin, the cope of the muntin being in the same relative position laterally as the cope on the cross rail. Any conventional means may be employed to provide for adjustment of the stop blocks ,and guide strips.

the table top between the slots thereof, workpiece guides on the table top forwardly of the slots thereof to position work-pieces for operation of the cutter heads of any desired group on ends thereof, and means to raise said table.

3. In a tenoning -machine, a main frame, a horizontal shaft journaled on top and near the back of the main frame transversely of the latter, a plurality of rotary cutter heads carried by said shaft, a motor mounted in the rear portion of the frame below said shaft and operatively connected to the latter, a table mounted in the main frame in front of said shaftfor vertical reciprocation, said table being adapted to lower by gravity and being adapted to be raised to present an end of a work-piece to the cutter heads, a treadle pivoted to the lower portion of the frame and projecting through the front of the latter, said treadle being operatively connected to the table for raising the latter when said treadle is depressed,

work-piece stops carried by the table and adapted to be butted by ends of work-pieces to limit the depth of cut made by the cutter heads in the end of the work-piece, and a work-piece guide is carried by the table to position the work-pieces laterally with respect to the cutter heads.

JOHN R. BEESON.

REFERENCES CITED The following, references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 666,314 Hutchinson Jan. 22, 1901 705,483 Tidey July 22, 1902 2,449,201 Buss Sept. 14, 1948 FOREIGN PATENTS Number Country Date 344,839 Great Britain Sept. 6, 1929 

